[FIX] Edit Domain: Partial restore state on categories mismatch

[ales-erjavec]

Issue

Fixes: gh-6660

Description of changes

• Ignore categories when exact match for a variable is not found in the stored settings (i.e. match by name and type only).
• If a stored transform is a CategoriesMapping transform that does not match the input, then it is dropped and a warning is shown.

Includes

• [X] Code changes
• [X] Tests
• [ ] Documentation

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 88.23%. Comparing base (91b7fcb) to head (62e1f31). Report is 40 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #6776   +/-   ##
=======================================
  Coverage   88.23%   88.23%           
=======================================
  Files         327      327           
  Lines       71318    71346   +28     
=======================================
+ Hits        62926    62953   +27     
- Misses       8392     8393    +1